EP0222425A3 - Brain-specific drug delivery - Google Patents
Brain-specific drug deliveryInfo
- Publication number
- EP0222425A3 EP0222425A3 EP86201714A EP86201714A EP0222425A3 EP 0222425 A3 EP0222425 A3 EP 0222425A3 EP 86201714 A EP86201714 A EP 86201714A EP 86201714 A EP86201714 A EP 86201714A EP 0222425 A3 EP0222425 A3 EP 0222425A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- brain
- ring
- dihydropyridine
- centrally acting
- acting drug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 210000004556 brain Anatomy 0.000 title abstract 2
- 238000012377 drug delivery Methods 0.000 title 1
- 125000004925 dihydropyridyl group Chemical class N1(CC=CC=C1)* 0.000 abstract 4
- 229940079593 drug Drugs 0.000 abstract 3
- 239000003814 drug Substances 0.000 abstract 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 230000008499 blood brain barrier function Effects 0.000 abstract 1
- 210000001218 blood-brain barrier Anatomy 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 230000002459 sustained effect Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
- A61K47/559—Redox delivery systems, e.g. dihydropyridine pyridinium salt redox systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/30—Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
- C07D209/32—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/80—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D211/84—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen directly attached to ring carbon atoms
- C07D211/90—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
- C07D213/82—Amides; Imides in position 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J43/00—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton
- C07J43/003—Normal steroids having a nitrogen-containing hetero ring spiro-condensed or not condensed with the cyclopenta(a)hydrophenanthrene skeleton not condensed
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/665—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans derived from pro-opiomelanocortin, pro-enkephalin or pro-dynorphin
- C07K14/70—Enkephalins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- Toxicology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Engineering & Computer Science (AREA)
- Gastroenterology & Hepatology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Pyridine Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Steroid Compounds (AREA)
Abstract
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US379316 | 1982-05-18 | ||
| US06/379,316 US4479932A (en) | 1982-05-18 | 1982-05-18 | Brain-specific drug delivery |
| US46154383A | 1983-01-27 | 1983-01-27 | |
| US461543 | 1983-01-27 | ||
| US475493 | 1983-03-15 | ||
| US06/475,493 US4622218A (en) | 1982-05-18 | 1983-03-15 | Testicular-specific drug delivery |
Related Parent Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83902034.4 Division | 1983-05-12 | ||
| EP83902034A Division EP0110955B1 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0222425A2 EP0222425A2 (en) | 1987-05-20 |
| EP0222425A3 true EP0222425A3 (en) | 1988-09-21 |
Family
ID=27409446
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86201713A Withdrawn EP0224283A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP87201385A Withdrawn EP0256577A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP86201711A Withdrawn EP0221588A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP83902034A Expired - Lifetime EP0110955B1 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP86201714A Withdrawn EP0222425A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP87201384A Withdrawn EP0262696A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86201713A Withdrawn EP0224283A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP87201385A Withdrawn EP0256577A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP86201711A Withdrawn EP0221588A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
| EP83902034A Expired - Lifetime EP0110955B1 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87201384A Withdrawn EP0262696A3 (en) | 1982-05-18 | 1983-05-12 | Brain-specific drug delivery |
Country Status (9)
| Country | Link |
|---|---|
| EP (6) | EP0224283A3 (en) |
| AT (1) | ATE126695T1 (en) |
| AU (1) | AU567433B2 (en) |
| CA (2) | CA1253856A (en) |
| DE (1) | DE3382795T2 (en) |
| ES (1) | ES8502087A1 (en) |
| IE (1) | IE69557B1 (en) |
| IT (1) | IT1171851B (en) |
| WO (1) | WO1983003968A1 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3574869D1 (en) * | 1984-02-29 | 1990-01-25 | Univ Florida | BRAIN-SPECIFIC ANALOGS OF CENTRALLY EFFECTIVE AMINES. |
| US4771059A (en) * | 1984-02-29 | 1988-09-13 | University Of Florida | Brain-specific analogues of centrally acting amines |
| US4933438A (en) * | 1984-02-29 | 1990-06-12 | University Of Florida | Brain-specific analogues of centrally acting amines |
| US5082853A (en) * | 1984-02-29 | 1992-01-21 | Bodor Nicholas S | Brain-specific analogues of centrally acting amines |
| AU4635885A (en) * | 1984-07-19 | 1986-02-25 | University Of Florida | Compounds for site-enhanced delivery of radionuclides and uses thereof |
| US4963688A (en) * | 1984-07-19 | 1990-10-16 | University Of Florida | Compounds for site-enhanced delivery of radionuclides and uses thereof |
| AU4632085A (en) * | 1984-07-19 | 1986-02-25 | University Of Florida | Novel radiopharmaceuticals and chelating agents useful in their preparation |
| US4764598A (en) * | 1985-08-22 | 1988-08-16 | The United States Of America As Represented By The Department Of Energy | Precursors to radiopharmaceutical agents for tissue imaging |
| US4863911A (en) * | 1986-08-04 | 1989-09-05 | University Of Florida | Method for treating male sexual dysfunction |
| US4888427A (en) * | 1987-04-07 | 1989-12-19 | University Of Florida | Amino acids containing dihydropyridine ring systems for site-specific delivery of peptides to the brain |
| US5079366A (en) * | 1987-04-07 | 1992-01-07 | University Of Florida | Quarternary pyridinium salts |
| US5017566A (en) * | 1987-12-30 | 1991-05-21 | University Of Florida | Redox systems for brain-targeted drug delivery |
| US5002935A (en) * | 1987-12-30 | 1991-03-26 | University Of Florida | Improvements in redox systems for brain-targeted drug delivery |
| EP0386644B1 (en) * | 1989-03-10 | 1997-06-04 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | Reagents for the determination of drugs |
| IL106998A0 (en) * | 1992-09-17 | 1993-12-28 | Univ Florida | Brain-enhanced delivery of neuroactive peptides by sequential metabolism |
| KR101301577B1 (en) * | 2010-08-20 | 2013-08-29 | 주식회사 바이오에프디엔씨 | Nicotinoyl Peptide Derivatives and Cosmetic Composition Comprising the Same |
| CN104136431B (en) | 2011-12-21 | 2017-03-15 | 小野药品工业株式会社 | Pyridone and pyrimidone derivatives as plasma thromboplastin antecedent a inhibitor |
| CN109153639B (en) * | 2016-03-14 | 2022-07-29 | 斯法尔制药私人有限公司 | Trigonelline compounds |
| WO2018054721A1 (en) | 2016-09-26 | 2018-03-29 | Basf Se | Pyridine compounds for controlling phytopathogenic harmful fungi |
| WO2018054723A1 (en) | 2016-09-26 | 2018-03-29 | Basf Se | Pyridine compounds for controlling phytopathogenic harmful fungi |
| WO2018054711A1 (en) | 2016-09-26 | 2018-03-29 | Basf Se | Pyridine compounds for controlling phytopathogenic harmful fungi |
| WO2018065182A1 (en) | 2016-10-04 | 2018-04-12 | Basf Se | Reduced quinoline compounds as antifuni agents |
| WO2018073110A1 (en) | 2016-10-20 | 2018-04-26 | Basf Se | Quinoline compounds as fungicides |
| WO2018134127A1 (en) | 2017-01-23 | 2018-07-26 | Basf Se | Fungicidal pyridine compounds |
| CN110475772A (en) | 2017-04-06 | 2019-11-19 | 巴斯夫欧洲公司 | pyridine compound |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929813A (en) | 1973-12-26 | 1975-12-30 | Interx Research Corp | Novel pro-drug derivatives of pyridinium aldoxime type cholinesterase reactivators and process for preparing same |
| US3962447A (en) | 1973-12-26 | 1976-06-08 | Interx Research Corporation | Novel pro-drug derivatives of pyridinium aldoxime type cholinesterase reactivators and method of using same |
| US4069322A (en) * | 1976-10-12 | 1978-01-17 | Interx Research Corporation | Pro-drugs for the improved delivery of certain selected anti-inflammatory steroids |
| US4206220A (en) * | 1978-07-13 | 1980-06-03 | Interx Research Corporation | Prodrugs for the improved delivery of non-steroidal anti-inflammatory agents |
-
1983
- 1983-05-12 EP EP86201713A patent/EP0224283A3/en not_active Withdrawn
- 1983-05-12 EP EP87201385A patent/EP0256577A3/en not_active Withdrawn
- 1983-05-12 DE DE3382795T patent/DE3382795T2/en not_active Expired - Lifetime
- 1983-05-12 WO PCT/US1983/000725 patent/WO1983003968A1/en not_active Ceased
- 1983-05-12 EP EP86201711A patent/EP0221588A3/en not_active Withdrawn
- 1983-05-12 EP EP83902034A patent/EP0110955B1/en not_active Expired - Lifetime
- 1983-05-12 AT AT83902034T patent/ATE126695T1/en not_active IP Right Cessation
- 1983-05-12 EP EP86201714A patent/EP0222425A3/en not_active Withdrawn
- 1983-05-12 AU AU17034/83A patent/AU567433B2/en not_active Expired
- 1983-05-12 EP EP87201384A patent/EP0262696A3/en not_active Withdrawn
- 1983-05-16 CA CA000428192A patent/CA1253856A/en not_active Expired
- 1983-05-17 ES ES522489A patent/ES8502087A1/en not_active Expired
- 1983-05-17 IE IE114983A patent/IE69557B1/en not_active IP Right Cessation
- 1983-05-18 IT IT48327/83A patent/IT1171851B/en active
-
1989
- 1989-02-09 CA CA000590673A patent/CA1327566C/en not_active Expired - Fee Related
Non-Patent Citations (8)
| Title |
|---|
| B. ROCHE: "Design of biopharmaceutical properties through prodrugs and analogs", 1977, pages 98-135, American Pharmaceutical Association, (N. BODOR) * |
| CHEMICAL AND ENGINEERING NEWS, 21st December 1981, pages 24,25, Washington D.C., US; R. RAWLS: "New methods let drugs past blood-brain barrier" * |
| JOURNAL OF MEDICINAL CHEMISTRY, vol. 26, April 1983, pages 313-318, Columbus, Ohio, US; N. BODOR et al.: "Improved delivery trough biological membranes. 11. A redox chemical drug-delivery system and its use for brain-specific delivery of phenylethylamine" * |
| JOURNAL OF MEDICINAL CHEMISTRY, vol. 26, April 1983, pages 528-534, Columbus, Ohio, US; N. BODOR: "Improved delivery through biological membranes. 13. Brain specific delivery of dopamine with a dihydropyridine pyridinium salt redox type delivery system" * |
| JOURNAL OF PHARMACEUTICAL SCIENCES, vol. 67, no. 5, May 1978, pages 685-687, Washington, D.C. US; N. BODOR et al.: "Elimination of a quaternary pyridinium salt, delivered as its dihydropyridine derivative from brain of mice" * |
| R.L. JULIANO: "Drug delivery systems", 1980, pages 112-176, Oxford University Press, (V. STELLA et al.) * |
| SCIENCE, vol. 214, 18th December 1981, pages 1370-1372; N. BODOR et al.: "Site-specific, sustained release of drugs to the brain" * |
| T. HUGUCHI et al.: "Pro-drugs as novel drug delivery systems", 1975, pages 83-85, American Chemical Society, Washington D.C., US; (V. STELLA) * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES522489A0 (en) | 1984-12-16 |
| IE931149L (en) | 1983-11-18 |
| DE3382795D1 (en) | 1995-09-28 |
| EP0110955B1 (en) | 1995-08-23 |
| EP0256577A3 (en) | 1988-07-06 |
| EP0222425A2 (en) | 1987-05-20 |
| CA1253856A (en) | 1989-05-09 |
| ATE126695T1 (en) | 1995-09-15 |
| CA1327566C (en) | 1994-03-08 |
| IE831149L (en) | 1983-11-18 |
| ES8502087A1 (en) | 1984-12-16 |
| DE3382795T2 (en) | 1996-02-15 |
| EP0221588A2 (en) | 1987-05-13 |
| WO1983003968A1 (en) | 1983-11-24 |
| IE69557B1 (en) | 1996-10-02 |
| IT8348327A0 (en) | 1983-05-18 |
| EP0221588A3 (en) | 1988-09-21 |
| EP0262696A3 (en) | 1988-07-20 |
| EP0262696A2 (en) | 1988-04-06 |
| AU567433B2 (en) | 1987-11-19 |
| AU1703483A (en) | 1983-12-02 |
| EP0256577A2 (en) | 1988-02-24 |
| EP0224283A2 (en) | 1987-06-03 |
| EP0110955A1 (en) | 1984-06-20 |
| IT1171851B (en) | 1987-06-10 |
| EP0224283A3 (en) | 1988-09-21 |
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